There is such a thing as system sellers, but I think some people have the expectation that one or two games will turn a system's fortunes around entirely.
That is possible, but very rare (Wii Sports), and in the long run you need many more games to keep the momentum going.
Interestingly, I think the sheer quantity of games is more important than a handful of awesome system sellers. This is what Nintendo learned while losing to Sony the last two generations. Sony fans will deny it but Playstation and PS2 were the kings of shovelware in their generations - and there's no denying they had the largest quantity of games. The difference is they also eventually wound up with a lot of great games (especially PS2), but that could still happen with Wii, we're only two years in.







